The p-bar p --> pi_0 pi_0 Puzzle
| dc.creator | Perkins, W. A. | |
| dc.date | 1999-11-02 | |
| dc.date.accessioned | 2026-07-07T04:27:16Z | |
| dc.date.available | 2026-07-07T04:27:16Z | |
| dc.description | According to conventional theory, the annihilation reaction p-bar p --> pi_0 pi_0 cannot occur from a p-bar p atomic S state. However, this reaction occurs so readily for antiprotons stopping in liquid hydrogen, that it would require 30% P-wave annihilations. Experimental results from other capture and p-bar p annihilation channels show that the fraction of P-wave annihilations is less than 6% in agreement with theoretical expectations. An experimental test to determine whether this reaction can occur from an atomic S state is suggested. If indeed this reaction is occurring from an atomic S state, then certain neutral vector mesons should exhibit a pi_0 pi_0 decay mode, and this can also be tested experimentally. | |
| dc.description | LaTeX, 9 pages, 2 postscript figures | |
| dc.identifier | https://arxiv.org/abs/hep-th/9911009 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9911009 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/56354 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | The p-bar p --> pi_0 pi_0 Puzzle | |
| dc.type | text |